This Weekend’s Events and Sales: Authentic Denim at Saks; Alice + Olivia Pops Up in Scoop

• Head to Saks to learn about men’s denim and shop for this season’s limited-edition jeans. Shoppers can customize their jeans with laser engraving, painting, and hemming. 611 Fifth Ave., nr. 51st St. (212-753-4000); 10–8.

• Shop at Lord & Taylor's Family & Friends event starting this weekend and receive an extra 25 percent discount on most items in store with this flyer. Through 4/23. 424 Fifth Ave., at 39th St., (212-391-3344); M–F (10–8:30), S (10–7:30), Su (11–7).

• Browse Mary Meyer's spring collection in a special pop-up shop at In God We Trust. There'll be drinks, discounts, giveaways, and every purchase counts as entry into a raffle for a Mary Meyer gift card. 70 Greenpoint Ave., nr. Franklin St., (718-389-3545); noon–8.

• Join the spring fling party celebrating the opening of the Alice + Olivia pop-up shop at Scoop in the meatpacking district. There'll be personal styling tips offered all day, and a D.J. from 3 p.m. 875 Washington St., nr. W 14th St., (212-929-1244); 11–6.

• Womenswear samples, archival pieces, and current season's stock are discounted up to 80 percent at Haute Hippie's spring sale. T-shirts start at $20, embellished dresses at $100. Through 4/22. 336 W. 37th St., fifteenth fl., nr. Eighth Ave.; 10–6.